Royal Naval Air Station Maydown (RNAS Maydown; or HMS Shrike, later HMS Gannet II) is a former Royal Navy Fleet Air Arm airbase located northeast of Derry, County Londonderry and west of Limavady, County Londonderry, Northern Ireland.
The airfield was transferred from the Royal Air Force on 1 May 1943 and the airbase was commissioned on 1 January 1944 as HMS Shrike. On 31 September 1945 it was 'paid off' and was immediately recommissioned as HMS Gannet II and served as a satellite airfield to RNAS Eglinton.
A number of units were here at some point:
The site is currently used by industry.